Methods and systems for a configurable tuned MOS capacitor are disclosed and may include filtering undesired signals in a chip utilizing one or more configurable MOS capacitors comprising one or more MOS transistors. The recombined images interfere constructively or destructively, in an amplitude and or polarization sense depending upon the method of recombination, when the alignment sensor is located at the center of the alignment mark. The metal wool is surrounded by a support grid and fixed by two fixing pieces, held at a separation from each other by the support grid. The present invention also relates to a corresponding method for producing container blanks. The phases of onoff of the switching elements M1, M3 are the same, and the phase of onoff of the switching element M2 is opposite to them. The enhancer element may be incorporated into expression vectors and used to increase the production of recombinant proteins.